CalculateEphemeralSharedKey creates a new ec25519 key pair, calculates a shared secret given a public key, and returns the created public key and secret.

CalculateSharedKey calculates a shared secret given a private an public key.

GenerateTLSCertificate for TLS serverset.

TODO check validity and return error.

TODO check validity and return error.

TODO check validity and return error.

NewSharedKey calculates a shared secret given a private and a public key, and returns it.

P256 curve.

P384 curve.

P521 curve.